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dmitrydrozdov / fb2smv

IEC 61499 Function blocks XML code to SMV converter
MIT License
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Support of E_DELAY #5

Open valvyat opened 3 years ago

valvyat commented 3 years ago
  1. Currently instances of E_DELAY need to have different names.
  2. For E_DELAY FBs instances FB2SMV inserts, I got it going after deleting the statement init(T2_DO):= -1; for the E_DELAY instance name T2

VAR T2 : E_DELAY (T2_START, T2_STOP, T2_EO, T2_DT, T2_DI, T2_DO, T2_alpha, T2_beta); init(T2_START):= FALSE; init(T2_STOP):= FALSE; init(T2_EO):= FALSE; init(T2_DT):= 666; init(T2_DI):= -1; init(T2_DO):= -1; init(T2_alpha):= FALSE; init(T2_beta):= FALSE;

NuSMV complains about the double assignment of this variable because inside the EDELAY module there is already such an assignment init(DO):= -1;

MODULE E_DELAY(event_START, event_STOP, eventEO, DT, DI, DO, alpha, beta) ASSIGN init(DO):= -1; next(DO):= case alpha & eventSTART : DT; alpha & eventSTOP : -1; alpha & DI = 0 : -1; DI >= 0 : DI; TRUE: DO; TRUE : DO; esac; DEFINE event_START_reset:= alpha; DEFINE event_STOP_reset:= (alpha & (event_START)); DEFINE event_EOset:= (alpha & DI=0); DEFINE alpha_reset:= alpha; DEFINE beta_set:= alpha; FAIRNESS (alpha) FAIRNESS (beta)

Besides, FB2SMV defines some variables of E_DELAY as integer

VAR T2_DT :integer; VAR T2_DI : integer; VAR T2_DO : integer;

I changed it manually to: VAR T2_DT : -1..666; VAR T2_DI : -1..666; VAR T2_DO : -1..666;

Because I found later initialisation init(T2_DT):= 666;

dmitrydrozdov commented 3 years ago

Regarding your last comment, if you disable "integers and reals" switch in the settings, it supposed to change all integer types into ranges. And then you can manually edit the ranges ("SMV Type") in the GUI "Variables" tab if you need

dmitrydrozdov commented 3 years ago

Please, share an FB application where you run into these errors

valvyat commented 3 years ago

Regarding your last comment, if you disable "integers and reals" switch in the settings, it supposed to change all integer types into ranges. And then you can manually edit the ranges ("SMV Type") in the GUI "Variables" tab if you need

Thanks! Please note that I am using the command line version. Implementing this would require some work by Midhun.

valvyat commented 3 years ago

Please, share an FB application where you run into these errors

DT.zip Please use DT_CFBa.fbt.